If your hard drive is so limited that you cannot fit 1 GB, maybe NFS Undercover is not for you. Consider these that actually run well:
They compress heavy .wav or .avi files into lossy but lightweight formats like .mp3 or .mp4. NFS Undercover Highly Compressed 32 MB Only
: Even a compressed version requires your PC to meet the minimum specs (3.0 GHz CPU, 512 MB RAM, 128 MB Video Card) to run properly. If your hard drive is so limited that